Coupling



Dec. 18, 1951 R. H; HUNTER ET AL COUPLING Filed DeO 2, 1947 INI..

INVENTOR Robert H Hunter Elmer J'. Kasper ATTORNEYS l LA Patented Dec. 18, .1951

CQUPLING Robert H. Hunter, .cales Mins, ana Elmer J. Kasper, Cleveland, Ohio; said Kasper assigner lto said Hunter Application December 2, 1947, Serial No. '789,228

'16 Claims. 1

'This 4invention relates to .coupling devices zand more particularly .to Adetachable ,connectors for joiningiiexibie hoses and the like totubular con-- ductors, valves, faucets and the like.

,It .is frequently desired to rattach `,flexible rubber hoses andother types of conduits tosink and tub faucets or valve outlets. Many typesof faucet Aconnectors have been ,devised for ,the purpose Vof attachingshower 44and bathtub .sprays to faucets for ,attaching `hoses .to .tub -Sl9g0ts for washing `.and laundry purposes, and, more recently, for attaching .flexible ,conduits to `taps for hot and 4`cold water .nsed in .automatic and semifautomatic clothes -washinamachines .and dishwashers.

'The Smooth.. plated-and polished-.surfacesfcustomarily used on .Sink vand `tub ,faucets ,make v.it difficult t attach conventional ,hose .connectors thereto, particularly when the .particular .water systemis maintained under Yrelatively,high pressures such as forty to sixty poundscr rsguare inch or more. {It is Atherefore `oneof `the .principal objects of thepresent invention ,to .provide van improved faucet .connector which, .Without being Vbulky Vor cumbersome, can .besecurely attached to the discharge end .of .a rfaucctancl which-will retain .its grip on the ufaucet under conditions of lulgh water pressure. `More specically Ythe invention aims to provide ,a faucet connector of the-type employing .a jam or compression gasket which 4embraces the jfaucet ,end in a tight 4frictiorlal grip to hold ;the.connector in place in combination with `a sealing Tgasket or washer -dispos/ed `across the ,discharge end ,of the 3faucet, ythe `sealing gasket'being eoznpressed between faucet end andV the body of i the vconnector.

Another object iss-to provide in aconnectorof the .character -imentioned -a retainer or 'j am A gasa ket 4which `lis formedat one end lwith a circumferentiallyextending relief or undercut which is collapsible .and 'presents but -a relatively small area of .Contact -to bear axially `against uthe annular-sealing gasket of .the assemblywhen the parts are drawn together.

lAnotherobjectlis to provide, 2ina connector` employingfanannular lsealinggasket between the connector body and the-end -of :a faucet,means for eiTectuating a.-crowning of thecentral Lportion `of `:the :sealing gasket so that fin assembling the Iconnector :to Ya faucet engagement 'between the 'faucet' end :and the sealing gasket occurs initially .at -the central portion of 'the .gasket and progresses radially outwardly `therefrom to effect-a concentration of `pressurebetween the nents both radial andaxial; anda combination of `jam `,and sealing :washers `cooperating Vto seal theenfl of a 'faucet `toiirnbed the :latter in resilient cushioning material upon assembly .of the connector to the faucet.

Another object is to `provide in a quick detachable `coupling for attaching a flexible vhose to `a faucet the combination of -aniimprovedconnector Aor spigot element for Iembracing and ifrictionally'gripping the discharge end of a faucet and a quick release socket or coupling element permanently fastened tothe vend of the Iilexible hose, so that one element of the coupling may be securely-and relatively permanently attached to the faucet and the other or fhose element of the-couplingmay be attached thereto .and detached therefrom at will.

The aboverand other objects of the invention will become apparentasfthe .following detailed description proceeds, YAthis description heing made in connection V-with theaccornpanying drawings forming a part of the specification. Like parts throughout the several -yiews .arefiindicated by the same numerals of reference. In the drawings:

Figure 1 is a side elevational view, :partly in sectionand with parts broken away and removed, vof a .quick detachable coupling .combination including a `faucet connector element, showing-the same attached to the discha-rgeend .of a faucet;

Fig. 2 is an axial sectional Ydetail with parts removed, showing the internal structure ofthe connectorVthis View being enlarged withlrespect to Fig. l;

Fig. 3 .is an expanded view showing the several lparts of the connector, -their'relative positions, and the end of the Yfaucet vto which ythe connector is attached, the resilient deformable gasketslbeing shown in :their molded or unstressed shapes;

Fig. i is a fragmentary detail, in section,

showing the relative positions of the parts as initially assembled on a faucet;

Fig. is a fragmentary sectional detail showing the connectorattached to a faucet having a discharge end of cylindrical form;

Fig. 6 is a sectional detail showing the relationship of the parts when the connector is attached to the end of a faucet having a relatively narrow lip or bead;

Fig. 7 is aV fragmentary sectional detail of a connector showing a split or modied form of slip ring for use with faucets having beads or lips that are relatively broad or wide; and

Fig. 8 is a perspective view of the split slip ring of Fig. '7.

The quick detachable coupling assembly com-v prises a faucet connector unit A which is attached to the end of faucet I and may be allowed to remain relatively permanently in place, and a unit B to which is permanently attached one end of flexible hose 2. The connector unit A includes a body member 3 having a tubular discharge extension 4 that is received telescopically within a tubular member 5 of the hose unit B. A number of ball detents, one of which is shown at E, are carried in radial apertures or through sockets formed as by drilling in the upper end of the tubular member 5. The balls are partially receivable in a circumferential groove 'I formed about the upper end of the tubular extension 4 and thus serve to lock together the discharge tube 4 of the connector A and the tube 5 of the faucet unit B. A sliding collar 8 is formed with an internal circumferentially extending cam ridge to engage the detent balls 6. A compression spring 9 retained in an annular space between the upper end of the tubular member 5 and the sliding collar 8 holds the latter against a retaining snap ring IU so that the circumferential cam ridge is normally positioned to retain the detent balls in projected locking positions. To release the detent balls for uncoupling of the unit B from the unit A the collar 8 is drawn downwardly against the force of the spring 9 so that, as the parts are separated, the detent balls B can be moved radially outwardly into their sockets by inclined face I I of the annular detent groove l. To assemble the units of the device the collar 8 is manually retracted against the force of the spring and the tubular member 5 is telescoped over the discharge tube or plug extension 4 of the unit A. Upon release of the sliding collar 8 the detent balls 6 are forced into the channel or groove 'I by the inclined face of the cam ridge thus locking the parts together.

The flexible hose 2 may be used for conducting water from faucet I to a shower or shampoo spray, a clothes or dish washing machine, or other appliances and devices. One end of the hose is received in telescopic or embracing relation on a reduced diameter end portion I4 of the tubular member 5 and a constricting or clamping collar or ball I5 is tightened about the end of the hose to clamp the latter against the end portion I4 of the tubular member.

The body member 3 of the faucet unit A is of general cup shape having an internal relatively shallow circular recess which is continuous with the centrally located passage in the tubular extension 4. This body member may be conveniently formed as a screw machine product using any suitable material such as iron, brass, or aluminum. It may also be formed as by casting, using brass or one of the light metals, or by injection molding of a plastic material. Circular side walls I6 of the body recess are cylindrical or substantially so and bottom I'I which may be flat is preferably of convex form, the center being slightly raised above the marginal portions to provide a central crowned portion.

An annular relatively fiat sealing gasket or washer I8 is received in a recessable body member and has a central opening which is continuous with the opening in the tubular extension 4. The gasket I 8, which is deformable and resilient, has a circular outer periphery of substantially the same diameter of the circular recess wall I6 so that in assembling the parts the outer edge walls of the gasket have a sliding friction t in the cylindrical wall I6 of the body member. The gasket or washer I8 may be formed as by stamping or cutting from sheet rubber stock having a consistency substantially like that used in garden hose washers, refrigerator sealing gaskets, automotive vehicle tires and the like. It may also be formedv by molding or by cutting rings from extruded tubular rubber stock of the consistency mentioned. In its unstressed condition this sealing gasket is of less thickness than its radial section width and when seated in the body recess the upper face or side of the gasket is disposed below upper end or edge I 9 of the body member.

By reason of the crowning of the floor or bottom wall I'I of the recess the upper or exposed face of the gasket I8 is similarly crowned or centrally raised in assembly. This central raising or crowning of the sealing gasket causes the central portion thereof to engage circular or annular inner edge corner 20 of the outlet end of the faucet I with greater force or pressure than pre vails between the outer portions of the gasket and the faucet end, thus establishing an effective liqe uid-tight seal between the parts which persists during slight angular distortion or displacement of the connector on the faucet end.

In assembling the connector on a faucet a cirf cular collar or retainer member 22 is first thread ed or telescoped over the faucet end, followed by a slip ring or circular anti-friction element 23, and a jam washer or ring gasket 24 formed of resilient deformable material such as rubber having a consistency similar to that used for the washer or gasket I8. Of course, other materials and other consistencies may be used.

The gasket 24, which may be molded, is illustrated in its unstressed condition in Fig. 3. f generally ring like form, the gasket is of greater axial extent than radial thickness and has an internal substantially cylindrical face 25 which at the lower end of the gasket, being the end dis-l posed toward the washer gasket I8 previously' mentioned, is undercut or relieved around the entire inner circumference of the gasket, or substantially so, to provide a recess which has a curved or arcuate concave wall 26. This gasket recess reduces the thickness of the gasket at its lower end and provides an axially extending relatively thin integral flange portion 21 which extends as a continuation of outer cylindrical wall 28. About the-upper end of the gasket the outer edge corner is beveled, providing a tapered or conical face29 to receive the matching conical face on the slip ring 23. The slip ring, made of metal such as brass or steel, preferably polished at least on its outer face, is formed to conical' shape to match the conical faces 29 of the deformable jam washer 24 and 35 of the retainer collar22.

The retainer member 0r collar 22 is formed with .internal .threads .30 which .match ithreads I on lthebutside nf theJaOdymemberand .hasan external knurled gripping.surface..32 .tofacilitate manual turning of the .retainer .in assembling the unit onaaucet. The .intertting threads serve 'to .draw .the parts together, .theretainer 22 being formed with an inwardly .directed Yradial .flange .31.1 which .overlies .and engages the conical slip ring '2.3. Thus, during.assenib1y,.axia1 force is applied to theslip .ring ..23 and vin .turn tolthe jam gasket24.

VIn 'its molded or unstressedcondition .thejam washer or Y gasket '24 is slightlyl-less in diameter across its centralopeningthan the external diameter of the faucet p. ends ,with which fit is .to be used. ".Thus 'in Ythreading or .assemblingithe washer or gasket 4onto the faucet en'dthe Vwasher is .slightly 'distended so that the cylindrical fface 25 maintains a .slight initial frictional .grip .on the faucet As the body member ."3 .and ithe retainer 22 .are drawn together by the threaded connectiontherebetween the axial force, applied to thegasket or `jam `washerZtt through conical slip-ring 23 actingover the conical face`29 fof the jam washer, 'tends to increase the radial compressivefo'rce of lthe `gasket Washer against the faucet end therebyincreasing `the'frctional grip f the gasket onthe faucet.

.`A's *the 'tightening of the connector yparts together is continued by'thescrewingo'f the'threade'd collar or sleeve "22 onto the body member 3 the latter Ais Ydrawn upwardly or axially toward or against theen'd .of'the 'faucet compressing the sealing washer t8 between the faucet end and the crowned Hoor t'i `of the :body recess. This drawing up of the `sealing gasket or washer .i8 against 'the end of thefaucet provides a uidti'ghtseal wh'ch'stronglyjresists theflow of water out 'between the meeting surfaces .between .the gasket IIB and, lon 4one'lf1an1;l,'the faucet,.and on theother hand, the crowned floor H.

The compression ofthe'jamwasher progressively-deformsthe latter so that it tendsto flow and completely iill `the spaceibetween the faucet endfand the retainer sleeve'22. This deformation o'f the gasket forces the outer surfaces of the same into frictional engagement wth'the walls of `'the collaror retainer 22, includingthethreads 3ll,"so thatreverse turning of the sleeve is'stron'gl-y'resiste'd'andthe connector remains inplace on the faucet endwith the jam washer "24 under strong deforming compression Yand the. `sealing gasket or washer |`8 compressed .axiallyibetween thefaucet-endand thefl'oor ofthe body. recess.

The .use of conical internal faces on the .re

tainer flange "31S and the slip ring 23 incombination with ja 'conical or tapered end on .theijam gasket :2t permits the gasket to ,extend l.out throug'fhthe 'end of the retainermeniber .orcollar and effect maximum contact with and frictional grip on a faucet or spigothaving a relatively short snout or discharge end.

EnFigs. 'l 'through-.4 .the .faucet .t isshown with an enlarged radial'bead .Gr.lip 38 .which mai/:be completely circumferential in extent :and `which in initialassemblyis received .in ,the'hottom end recess of 'thej am washer 2li, .theconcave .face`25 of the .washer recess somewhatconforming `tothe curvature of Ythe ,faucet bead. Fig. e shows ,the parts in a state ofinitialassembly, `the rubber sealing gaskets vor washers being substantially unstressed other than the .stretching ofA the washer "2e required `in placing the ,sa-me over A.the faucet en'd and the slight radialcornpressionof the sealing gasket fl'3 requiredinnttingthefsame e. .intoathe hodyrrecess. Il (pon-drawing together .of the parts to .compress 'the gaskets .and secure the v.connector on the rfaucetend, the resilient gas.-

-kets .deforrn .substantially to .the -shape shown in Eig.. 2,. :Soassembledia slight clearance Vindicated .at .-3-1' may iprevail `between fthe -endof the thin flange `ft'l'offthe -jamgasketM-and the upper face of the sealing washer L8. Thus the axial Vstress in the connector is iconeentrated on Vthe 'end of the faucet so fthatrastrong sealingaction results from-.the'compression of the washer t8.

Inflig v5 is Aillustrated a combination in 'which .the iconnector iis .assembled on the `end of a straight ffaucet. the faucet having no bead or lip-.correspondingeto thebead previously mentioned. 5lit-such larr-assembly the thin vflange El .oi Fthe gasket 24 .is laterally :unsupported and subject to deformation o1 collapse into annular space [3% .resulting from `thefundercutting of the gasket eend. ,This lateral ldeformation Lof the gasket ange limits the :axial force the iiange exerts against the :sealing washer |8 and permits the ldatter to he drawn upwardly against the faucetfso that theaxials-stress in thefconnector is concentrated. at -.narrow.end face 3-9 of l the 1f aucet.

The-.frictional grip `offthe jam `washer or gasket 24 `on the ,faucet for spigot utilized in retaining the connector in assembled relation to the -faucet is effected largely through distortion -of .such gasket under .the lpressure )applied -obliclueli thereto .by :the fconical faces iof the `slip 'ring 'a3 and .the .ange -fefof the retainer. 'The voblique force. applied'^.to.thefring gasket includes .one com ponent which Aacts radially to :force 4the gasket rml-y (against the .-faucet .and Vthereby ymaintain afstrong `frictional .grip-on ythe flatter. Another componentcf the compressive =force fin the gasket is-1aXial-and. acts yto `:'CiplDOSeor resist eXtrusionof the ..gasketouty through itheopening lin the Aupper end .ofthe retaining collar :2:2 lbetween theiiange 34A and :the .outer faceof .the :faucet vl'n this` connection iitisobserved that theinitial frictional gripfof the:rin g. -gasket on 'the faucet obtained by distension of .the `ring .gasket in assembly, although. not .essential .tooperation of .the-device, is particularly .effective :in `opposing zarial shifting of 7the .gasketyasthe .retainer 212-is tightened.

.Fig ..6 illustrates .a A.constraction'in -Whicri connector .is assembledcn arfaucet hatfingan annular dip orUbead-li) which isrelatively small er narrow lbut ,in `other respects :corresponds to the .beadpr lipddescribed in connectionwith Eig-s. .l ithrough .4. .In -the arrangement shown in Eig. .i6 the jam .washeror gasket e is positioned on the'faucet .endandfdrawn downin assembly .so athatQthe-lowerfend of .the narrow. flange Z'Labuts the uppenfaceof thesealing-.wash er it. Apositive .sealfis-.maintained-hetween the end of theffaucetal :andthe .washer itself-y reason 'of the axial -stress v-in .the washer randthe:crowning ci the hottomface .-Ifi-rof thebodyirecess.

For use in applications requiring an extremely strong eonneotionfsuch,:forfexampleaas with .high

water pressures-or with an-axia1 load fappiied :to

faucet. In assembling'the connector to a faucet using the split slip ring of Figs. 7 and 8 the slip ring is expanded over the end of the faucet, returning to the shape shown in Fig. 8 by inherent resiliency thereof. Ends 43 and 44 of the split slip ring overlap one another in sliding relation so as to maintain a substantially continuous circumferentially extending metallic surface in all normal positions of expansion and contraction. By reason of the greater radial extent of the split ring shown in Figs. 'l and 8 as compared to the slip rings of the preceding figures, the rubber of the jam washer 24 is constrained against flowing axially from between the faucet and the retainer 22 and relatively greater compressive forces can be applied to the jam gasket thereby effecting stronger frictional grip of the gasket on the faucet.

The principles of the present invention may be utilized in various ways, numerous modifications and alterations being contemplated, substitution of parts and changes in construction being resorted to as desired, it being understood that the articles shown in the drawings and described above are given merely for purposes of explanation and illustration without intending to limit the scope of the claims to the specific details disclosed.

What we claim is:

1. A faucet connector comprising a body member having a recess and a discharge opening communicating with said recess, a deformable gasket disposed in the recess and having an opening continuous with the discharge opening of the body member, an annular deformable gasket for embracing a faucet end, a collar surrounding the annular gasket and having connection with the body member for drawing the parts together in compressing the annular gasket against a faucet embraced thereby and in holding the first mentioned gasket against the end of the faucet, the relative size of the gaskets permitting endwise abutment of the annular gasket against the first mentioned gasket in assembly.

2. A faucet connector comprising a body member having a recess and a discharge opening communicating with said recess, a at ring gasket of resilient deformable material disposed in the recess and having a central opening continuous with the discharge opening of the body member, said ring gasket being of greater radial dimension than of axial thickness, an annular deformable gasket for embracing a faucet end, a collar surrounding the annular gasket and having connection with the body member for drawing the parts together in compressing the annular gasket against a faucet embraced thereby and in holding the first mentioned gasket against the end of the faucet, the relative size of the gaskets permitting endwise abutment of the annular gasket against the rst mentioned gasket in assembly.

3. A faucet connector comprising a body member having a recess and a discharge opening communicating with said recess, a deformable gasket disposed in the recess and having an opening continuous with the discharge opening of the body member, an annular deformable gasket for embracing a faucet end, a collar sudrounding the annular gasket and having connection with the body member for drawing the parts together in compressing the annular gasket against a faucet embraced thereby and in holding the first mentioned gasket against the end of the faucet, the relative size of the gaskets permitting endwise abutment of the annular gasket against the rst mentioned gasket in assembly, and a lslip ring interposed between the annular gasket and the collar to permit facile relative turning of the parts in assembly, the slip ring being transversely split and having overlapped ends at the split.

4. In a faucet coupling having a body member and a retainer member providing a socket for receiving the 'end of a faucet, a gasket of resilient deformable material receivable within the retainer member to be compressed thereby in embracing relation to a received faucet end, the gasket being ring-like and having a substantially cylindrical inner wall undercut at one end of the gasket to provide a substantially annular relatively thin walled flange. at said one end of the gasket, and a second deformable gasket disposed in abutting relation against the edge of the thin walled flange.

5. In a faucet coupling having a body member and a retainer member providing a socket for receiving the end of a faucet, a gasket of resilient deformable material receivable within the retainer member to be compressed thereby in embracing relation to a received faucet end, a second gasket of resilient deformable material receivable in abutting relation against one end of the first mentioned gasket and between the body member and the end of the received faucet, and means for holding the members in assembled relation with the gaskets under compression.

6. In a faucet coupling having a body member and a retainer member providing a socket for receiving the end of a faucet, a `gasket of resilient deformable material receivable within the retainer member to be compressed thereby in embracing relation to a received faucet end, a second gasket of resilient deformable material receivable in abutting relation against one end of the rst mentioned gasket and between the body member and the end of the received faucet, slip means between the retainer member and the first named gasket to reduce friction therebetween for relative turning of the retainer member on such gasket, the slip means being transversely split and having overlapped ends at the split, and interconnecting threads on the members for drawing the same together upon relative turning thereof in assembling the coupling on a faucet.

'7. In a faucet coupling, an annular jam gasket of elastic deformable material for embracing a faucet, the unstressed gasket having a substantially cylindrical inner face undercut at one end and an outer face beveled at the other end of the gasket, and means for compressing the gasket axially, said compressing means including means rigidly embracing the outer face of the gasket substantially its entire axial extent to limit radial expansion of the gasket.

8. In a faucet coupling, an annular jam gasket of elastic deformable material for embracing a faucet, the unstressed gasket being of greater axial length than radial thickness and having a substantially cylindrical inner face undercut at one end andan outer face beveled at the other end of the gasket, and means for compressing the gasket axially, said compressing means including means rigidly embracing the outer face of the gasket substantially its entire axial extent to limit radial expansion of the gasket.

9. In a faucet coupling, an annular jam gasket of elastic deformable material for embracing a faucet, the unstressed gasket having substantially cylindrical inner and outer faces, the inner face being undercut at one end of the gasket, and the outer face being relieved at the other end of the gasket, and means for compressing the gasket axially, said compressing means including means rigidly embracing the outer face of the gasket substantially its entire axial extent to limit radial expansion of the gasket.

lo. In a faucet coupling, an annular jam gasket of elastic deformable material for embracing a faucet, the unstressed gasket being of greater 'axial length than radial thickness and having substantially cylindrical inner and outer faces, the inner face being undercut at one end of the gasket, and the outer face being relieved at the other end of the gasket, and means for compressing the gasket axially, said compressing means including means rigidly embracing the outer face of the gasket substantially its entire axial extent to limit radial expansion of the gasket.

11. In a faucet coupling, an annular jam gasket of elastic deformable material for embracing a faucet, the unstressed gasket having a cylindrical outer face and an inner face formed at one end of the gasket with a concave undercut, the gasket being of greater axial length than radial thickness, and means for compressing the gasket axially, said compressing means including means rigidly embracing the outer face of the gasket substantially its entire axial extent to limit radial expansion of the gasket.

12. In a faucet coupling having a body member and a retainer member providing a socket for receiving the end of a faucet, a gasket of resilient deformable material receivable within the retainer member to be compressed thereby in embracing relation to a received faucet end, the gasket being ring-like and the outer face thereof being relieved at one end providing a tapered face inclined at an acute angle to the axis of the gasket, the gasket also being undercut at its other end through the greater portion of its radial thickness to provide an integral axially extending deformable circular iiange, and the retainer member including radially directed ange means having a similarly inclined surface for engaging the inclined face of the gasket.

13, In a faucet coupling, a body member having an end face to bear against the end of a faucet, a resilient deformable gasket seated against the body face, the body having a passage opening through the end face thereof and the gasket having an aperture in registry with the passage opening, means for retaining the body in assembled relation With a faucet and with the gasket interposed and compressed between the faucet and the body end face, the gasket being substantially flat in its unstressed condition and the body face being centrally crowned about the passage opening to effect a distortion and crowning v of the gasket in assembly whereby the compres- Lif) cess, a central aperture in the washer in registry with the passage opening, a jam gasket of resilient deformable material for embracing a faucet, a retainer surrounding the jam gasket, the retainer being connected to the body for securing the parts together and for drawing the end of an embraced faucet against the bottom of the recess with the fiat washer interposed and compressed therebetween, the recess bottom being centrally crowned about the passage opening to effect a distortion and crowning of the fiat gasket in assembly whereby the compression of the flat gasket is greater adjacent the aperture therein than at the outer portions of the gasket.

l5. In a faucet coupling having a body member and a retainer member providing a socket for receiving the end of a faucet, the retainer member having inwardly directed iiange means dening va substantially circular opening into the socket, a gasket of resilient deformable material receivable within the retainer member to be compressed thereby in embracing relation to a received faucet end, and slip means interposed between the retainer member and the gasket, the slip means comprising a resilient thin metal ring having an inside diameter less than and an outside diameter greater than the diameter of said opening, the metal ring being radially split and overlapped at the split to permit gap free expansion of the ring in admitting a faucet end to the socket.

16. In a faucet coupling having a body member and a retainer member providing a socket for receiving the end of a faucet, the retainer member having inwardly directed flange means defining a substantially circular opening into the socket, a gasket of resilient deformable material receivable within the retainer member to be compressed thereby in embracing relation to a received faucet end, and slip means interposed between the retainer member and the gasket, the slip means comprising a split ring of thin resilient metal having an inside diameter less than and an outside diameter greater than the diameter of said opening, the metal ring being substantially conical in shape and having portions overlapped at the split to permit gap free expansion of the ring in admitting a faucet end to the socket.

ROBERT H. HUNTER. ELMER J. KASPER.

REFERENCES CITED The following references are of record in the iile of this patent:

UNITED STATES PATENTS Norway Apr. 15, 1944 

